Dynamic Web Content Compression for Set-Top Boxes
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Solution Overview
Problem
Legacy video compression systems are unable to optimally display video on modern high-definition screens due to restrictions on channel capacity and the use of lower picture-rates, leading to visible artifacts and inefficient bandwidth usage.
Innovation Solution
A system and method for dynamic compression and decompression of web content using a server and set-top box, which dynamically encodes video and graphics into different color spaces and modifies frame rates based on received parameters, allowing for efficient streaming and rendering of high-definition content on various devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If legacy video compression systems use lower picture-rates to reduce bandwidth usage, then channel capacity restrictions are satisfied, but picture quality deteriorates and artifacts become visible
Solution Approach 1:
The system dynamically changes compression parameters including picture rate, color space encoding (4:2:0, 4:2:2, 4:4:4), and quality levels based on device capabilities and network conditions. This allows optimization of the bandwidth-quality tradeoff by adjusting parameters to match the specific requirements of each display device and network environment.
Solution Approach 2:
The compression system transitions from static legacy compression to dynamic adaptive compression that adjusts picture rate, encoding format, and quality parameters in real-time based on feedback about display capabilities and network bandwidth. This dynamic adaptation enables the system to maintain high picture quality while using efficient bandwidth.
2Ease of operation
If legacy compression systems are used to ensure compatibility with older devices, then ease of operation is maintained, but adaptability to modern high-definition displays is lost
Solution Approach 1:
The compression system is designed to universally support multiple display types and capabilities including standard definition, high definition, and ultra high definition devices. It can adapt to different color spaces (4:2:0, 4:2:2, 4:4:4), picture rates, and network conditions, making it suitable for a wide range of devices from mobile phones to HDTVs while maintaining ease of use.
Solution Approach 2:
The system changes compression parameters dynamically based on the detected display capabilities of the receiving device. By adjusting picture rate, color space encoding, and quality parameters according to the specific device being served, the system maintains compatibility with older devices while fully supporting modern high-definition displays.
3Quantity of substance
If lossy compression is applied to achieve high compression ratios, then storage space and bandwidth are reduced, but visible artifacts appear in the compressed video
Solution Approach 1:
The system adjusts compression strength and quality parameters based on the specific requirements of the content and display device. By dynamically changing compression levels and encoding parameters, the system can achieve high compression ratios when appropriate while maintaining high picture quality and minimizing artifacts when needed, thus adapting the balance between data size and quality.
Solution Approach 2:
The compression system incorporates feedback mechanisms that monitor network conditions, device capabilities, and visual quality metrics. This feedback allows the system to adjust compression parameters in real-time to minimize artifacts while maximizing compression efficiency, ensuring optimal balance between data size reduction and picture quality preservation.
Data Source
AI summary
Certain aspects of a method and system for compression and decompression for handling web content may include a communication system that comprises a server in a server computing cloud that coordinates operation of one or more set-top boxes. The server may be operable to receive a request to display one or more frames of web content from the one or more set-top boxes. The server may be operable to receive one or more parameters associated with the one or more frames of the requested web content from the one or more set-top boxes. The server may be operable to dynamically encode at least a portion of one or more frames of the requested web content into one or more color spaces based on the received one or more parameters.